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Excellent

#147 of 3,813 schools in IL

Top 4% in state

Glenbard South High School

High School · Glenbard Twp Hsd 87 · Glen Ellyn, IL

A Glenbard Twp Hsd 87 high school where students score 10 points above what's typical for similar communities.

23W200 Butterfield Rd, Glen Ellyn, IL 60137

  • Math 43% proficient (2021)
  • Reading 50% proficient (2022)
  • 5/5 advanced STEM subjects

Academics

Full Profile · 4/4 metrics
Student Progress9.0Excellent25%
Year-over-year improvement in student test scores.
View breakdown
Years of Data14
Annual Change-2.71 pts/yr
Data Period2009–2022
TrendDeclining
Academics9.1Excellent25%
Student proficiency on state tests, adjusted for community poverty levels.
View breakdown
Math Proficiency43% (2021 EdFacts)
Reading/ELA Proficiency50% (2022 EdFacts)
Overall Proficiency47% (2022 EdFacts, Math+ELA)
Expected (poverty-adj.)36% (model expectation from 2022 EdFacts)
vs. Expected+10.4 pts
Adjusted Percentile86th
College Readiness9.6Excellent30%
Graduation rates, AP course participation, and IB availability.
View breakdown
AP Participation44.5%
IB ProgramNo
Resources & Environment7.8Very Good20%
Student-teacher ratio, district spending per student, and attendance.
View breakdown
Student-Teacher Ratio15.6:1
District spending per student$24,208
Chronic Absenteeism21.6%

Students at Glenbard South High School score 46% proficient, which is above what's typical for similar communities (expected: 36%).

How we calculate scores →

2022 EdFacts proficiency

Most recent published year. School vs. IL average.

Math Proficiency43%(2021 EdFacts)
School
State
Not reported(2021 EdFacts)
ELA Proficiency50%(2022 EdFacts)
School
State
Not reported(2022 EdFacts)

Trend

→ Steady

Proficiency is down 29 points across the 14-year record (2009–2022) and has held near 50% recently.

Show all 14 years
2009
Math
80%
ELA
77%
2010
Math
72%
ELA
64%
2011
Math
70%
ELA
67%
2012
Math
72%
ELA
73%
2013
Math
73%
ELA
66%
2014
Math
12%
ELA
58%
2015
Math
3%
ELA
42%
2016
Math
52%
ELA
58%
2017
Math
48%
ELA
52%
2018
Math
50%
ELA
48%
2019
Math
50%
ELA
48%
2020*
Math
43%
ELA
45%
2021*
Math
43%
ELA
45%
2022
ELA
50%

Multi-year averages used by the rating model: math 51% (multi-year average, 2009-2021) · reading/ELA 57% (multi-year average, 2009-2022)

* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.

Based on 27 test records from IL state assessments and EdFacts (NCES).

Equity & diversity

Shown separately, not included in the overall score

Free/reduced lunch

29.1%

Students qualifying for federal meal assistance

How we rate schools

A clear 1–10 score built from public data — growth, academics, and learning environment. No hidden criteria, no pay-to-play.

See how we rate

The neighborhood

Where Glenbard South High School sits, and what the surrounding area looks like.

Nearby same-level schools are colored by their score. Pins are locations, not attendance boundaries. Open the Chicago map →

Getting around & local context

  • Walk 18Car-Dependent
  • Bike 30Somewhat Bikeable
  • City Safety: Average635/100K

Powered byWalk Score

FBI Uniform Crime Reporting · 2024 · city context (Glen Ellyn), not school-level safety or attendance eligibility. Source details

Source period: 2024. Freshness not available.

Area profileU.S. Census ACS 5-year estimates (ACS 2019–2023 5-year estimates)

Median income

$131,695

Median home value

$490,800

Median rent

$1,321/mo

College educated

63.7%

Homeownership

80.9%

Poverty rate

4.9%

ACS 2019–2023 5-year estimates for the ZCTA associated with school ZIP 60137; this is area context, not an attendance boundary.

Programs & students

Programs & Offerings

AP/IB Programs3AP courses offered
44.5% participation·State avg: 2.7 AP courses·CRDC via Urban Institute · SY 2021–22
Athletics25sports offered
13 boys'·12 girls'·68 teams (incl. JV)·CRDC via Urban Institute · SY 2021–22
Advanced STEM Courses5of 5 advanced subjects offered
Algebra II, Advanced Math, Calculus, Chemistry, Physics·CRDC via Urban Institute · SY 2021–22

Compare nearby

Nearby same-level schools

4 from a 5-mile search; district fallback available

SchoolScoreGradesDistanceEnrollmentCompare
Treland AcademyPrivate · tuitionNot rated8–121.7 mi4Compare →
Giant Steps IllinoisPrivate · tuition8.2privateK–122.2 mi119Compare →
Lisle High SchoolEnrollment path unverified9.09–122.7 mi435Compare →
Chesterton Academy of the Holy FamilyPrivate · tuition6.3private9–122.8 mi138Compare →

Distance is proximity only; it is not attendance eligibility.

Private · tuition: Potential private option; tuition and admission requirements have not been verified.

Enrollment path unverified: Potential public school; its attendance or application path has not been classified.

Public and private scores come from different models and are shown side by side, not blended into one ranking.

Glenbard Twp Hsd 87

Schools in district
4
Rank in district
#1 of 4
District spending per student
$24,208NCES F-33 · FY 2023 · This annual source is three years behind the current year.
District child poverty rate
5.0%Census SAIPE · 2024

Glenbard South High School is listed in Glenbard Twp HSD 87; a district label does not verify attendance for an address.

About Glenbard South High School

Glenbard South High School is a public high school in Glen Ellyn, IL, part of Glenbard Twp Hsd 87, serving approximately 1,027 students in grades 9th-12th with a 15.6:1 student-teacher ratio. It holds a MySchoolScout rating of 9.0 out of 10 and ranks #147 of 3,813 schools in IL. State assessment records show 51% math proficiency (multi-year average, 2009-2021) and 57% reading/ELA proficiency (multi-year average, 2009-2022).

What's said publicly about Glenbard South High School

Sources:Wikipedia

Synthesized from public, attributable sources. Updated May 2026.

Glenbard South High School (GSHS) is a public four-year high school located in Glen Ellyn, Illinois, United States 1. It operates as part of Glenbard Township High School District 87 1. The school is noted as the smallest among the four Glenbard Township High Schools 1. Its student body consists of individuals residing within the boundary of Community Consolidated School District 89 1.
Sources (1)
  1. en.wikipedia.org
Generated by AI from public sources. Every claim is grounded in a cited source.Report inaccuracy

Frequently asked questions

Common questions about Glenbard South High School

What grades does Glenbard South High School serve?

Glenbard South High School serves students in grades 9th through 12th.

How many students attend Glenbard South High School?

Glenbard South High School has an enrollment of approximately 1,027 students.

What is the student-teacher ratio at Glenbard South High School?

The student-teacher ratio at Glenbard South High School is 15.6:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.

How does Glenbard South High School rank in IL?

Glenbard South High School ranks #147 of 3,813 schools in IL.

What is Glenbard South High School's MySchoolScout rating?

Glenbard South High School has a current MySchoolScout rating of 9.0 out of 10. This score combines the level-appropriate components shown in the rating breakdown; equity data is shown separately for context.

What are the test scores at Glenbard South High School?

Based on loaded state assessment records, Glenbard South High School has 51% math proficiency (multi-year average, 2009-2021) and 57% reading/ELA proficiency (multi-year average, 2009-2022).

Is Glenbard South High School a charter school?

No, Glenbard South High School is not a charter school. It is a traditional public school operated by the local school district.

Is Glenbard South High School a Title I school?

No, Glenbard South High School is not currently a Title I school.

What does the Free & Reduced Lunch percentage mean for Glenbard South High School?

29.1% of students at Glenbard South High School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.

School factsNCES Common Core of Data (CCD) (SY 2023–24)

Grades
9th – 12th
Enrollment
1,027
Student-Teacher Ratio
15.6:1
Teachers (FTE)
66
Type
regular
Setting
Large Suburb
County
DuPage County
Chronic Absenteeism (SY 2022-23)
21.6%
Area population (ZIP 60137)
38,754
Area average commute
28.4 min
Area median age
40.9
About this school's data

Every number on this page comes from a published source with a stated period. Where a source is partial, aging, or describes a surrounding area rather than the school, that limitation is named below.

School directory (enrollment, grades, staff, contact)
NCES Common Core of Data (CCD) · SY 2023–24 · Medium confidence
  • Source period: SY 2023–24. A newer release may be available.
MySchoolScout rating and rank
MySchoolScout ranking model · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Derived as a weighted blend of the component scores shown in Academics from state assessment, EdFacts growth, and NCES resource records.
Math proficiency
State department of education · 2021 EdFacts · Low confidence
  • Older source: 2021 EdFacts. Use as historical context.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Reading/ELA proficiency
State department of education · 2022 EdFacts · Low confidence
  • Older source: 2022 EdFacts. Use as historical context.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived from source records rather than read directly from one field.
Student progress (growth)
NCES EdFacts · Mixed source periods · Low confidence
  • Vintage not available. Do not use this measure alone.
  • Available for part of the eligible units; results may not represent the full area.
  • Derived as the fitted year-over-year slope of proficiency from multi-year assessment records.
Neighborhood (income, housing, education)
U.S. Census ACS 5-year estimates · ACS 2019–2023 5-year estimates · Low confidence
  • Older source: ACS 2019–2023 5-year estimates. Use as historical context.
  • Reported for the ZCTA for ZIP 60137; this does not measure the attendance area.
Programs (AP/IB, athletics, gifted)
CRDC via Urban Institute · SY 2021–22 · Medium confidence
  • Available for part of the eligible units; results may not represent the full area.
  • Source period: SY 2021–22. A newer release may be available.

Evidence periods: Rating mixed/unknown input periods; assessments multi-year average, 2009-2021, multi-year average, 2009-2022; directory SY 2023–24

About our data · How we calculate scores

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